[Buildroot] [git commit branch/next] kconfig infra: make update-config/defconfig handling symmetrical

Thomas Petazzoni thomas.petazzoni at free-electrons.com
Sat Feb 14 15:34:04 UTC 2015


commit: http://git.buildroot.net/buildroot/commit/?id=1941386c3da9a4d5f14ab2c3c500188a0e221c08
branch: http://git.buildroot.net/buildroot/commit/?id=refs/heads/next

Replace a 'cp --preserve' with a 'touch --reference' so that the code
for foo-update-config and foo-update-defconfig is symmetrical to ease
maintainability and increase clarity.

Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire at gmail.com>
Signed-off-by: "Yann E. Morin" <yann.morin.1998 at free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
---
 package/pkg-kconfig.mk |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/package/pkg-kconfig.mk b/package/pkg-kconfig.mk
index db56b7a..f76c7a7 100644
--- a/package/pkg-kconfig.mk
+++ b/package/pkg-kconfig.mk
@@ -78,8 +78,11 @@ $(1)-savedefconfig: $$($(2)_DIR)/.stamp_kconfig_fixup_done
 		$$($(2)_KCONFIG_OPTS) savedefconfig
 
 # Target to copy back the configuration to the source configuration file
+# Even though we could use 'cp --preserve-timestamps' here, the separate
+# cp and 'touch --reference' is used for symmetry with $(1)-update-defconfig.
 $(1)-update-config: $$($(2)_DIR)/.stamp_kconfig_fixup_done
-	cp --preserve=timestamps -f $$($(2)_DIR)/.config $$($(2)_KCONFIG_FILE)
+	cp -f $$($(2)_DIR)/.config $$($(2)_KCONFIG_FILE)
+	touch --reference $$($(2)_DIR)/.config $$($(2)_KCONFIG_FILE)
 
 # Note: make sure the timestamp of the stored configuration is not newer than
 # the .config to avoid a useless rebuild. Note that, contrary to


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